Cushion pneumatic heel.



CUSHION .PNEUMATIC HEEL.

APPLCATION FiLED AUG.22. 1916.

Patente-d July 3, 19W.

OSCAR MUSSINAN, OF vNEIN YORK, N. Y.

4 CUSHION PNEUMATIC HEEL.

naamw To all whom t may concern.'

Be it known that I, OSCAR MUssINAN, a cltizen of the United States, anda resident of the borough of Manhattan, in the city 5 and State of .tainnew and useful ion -Pneumatic Heels, ing` is a specification.

he invention relates to cushion heels, M) and has for one of itsVprincipal objects to provide such a heel which and durable, which shallbeeconomical of material, and which shall takeup a portion of the shockconsequent upon the tread of the wearer.

The invention consists inthe novel construction, arrangement andcombination of various elements and parts, as shown in the accompanyingdrawings and hereinafter 2o more particularly described.

In the said drawings, Figure l is a plan view of the upper face heel;Fig. 2 is a side view 3 is a section taken on the line 3-3 of Fig. l;Fig. 4 is an endvinw; Fig. 5 is a plan view of the lower fac?, Fig'. 6is a section taken on the line 6-6 of Fig. 5; Fig. 7 `is a section takenon the line 7 7 of Fig. 5; and Figs. 8 and 9 are plan views of theproveniente in Cushof which the followof the same; Fig.

` lower and upper faces respectively, showing a modification which maybe incorporated in my invention.

In carrying" my invention into effect in the embodiment thereof which Ihave sel lected for illustration in Figs. l to 7 incluin thisspecification, Il

sive and description provide a heel formed of rubber or other iiexiblematerial provided with surface of the heel of a shoe or boot to which itmay be attached. Suitable perforations 13 may be provided, through whichmay extend nails by means of which the eel may be secured to the shoe orboot.

In the central portion ofthe lower face of the heel I provide an archedcavity 14. The shape of this cavity 14 may be best observed in Figs. 3to 7 inclusive, where it will be seen that it is open at the front ofthe heel, as shown at 15, but that on all other sides its walls curvedownward and join the inner edge of the tread 11. At thecenter of thecavity 14 a secondary dome-shaped cavity 16 extends toward the upperface of the heel.

Specification of Letters Patent.

Application filed August 22, 1916.

New York, have invented cer- In the modification -9 I provide a heelhaving a tread portion 21,

0f my improved. surrounding a cavity 22, analogous to thev .The tread 11isbroken at inter- Serial N o. 116,288.

vals by arched cavities or grooves 17 which extend outward therethroughfroift'he Acavity 14 to the outer air.

On the upper face of the heel I provide a cavity 18 within the portion12. In the center of this cavity and opposite the depression 16 in thecavity 14 dome-shaped elevation 20 which may ex tend slightly above thelevel of the portion l hef portion 12 is broken atl intervals by meansof depressions or grooves 19, oo nbe observed by an inspection of Fig. 2that t e depressions`19 are staggered with relation to the depressions17, and also that they are considerably smaller than the saiddepressions 17. I have designated the material between the upper andlower cavities 25.

shown in Figs. 8 and cavity 14, and Aprovided with laterally eX- tendingcavities or grooves 23. The heel may be provided with perforations 24,anal* ogous to the perforations 13.

The upper face of the heel is provided with a peripheral portion 26,analogous to the portion 12, surrounding a depressionl 27,

grooves 29. This modification differs from that first described in thatthe outer ends of the depressions or grooves 23 and 29 are closed bythin portions ofl material 30. These closures are for appearance, and donot in any way aii'ect the operation of my invention. It is preferable,however, not to hermetically close the chamber formed by the depression27 when the heel is in place. In use my cushion heel is attached in anysuitable manner to the heel of a shoe or boot. When the foot is placedupon the ground in walking, the weight of the body falls upon the tread.openings 19, (or 29), and the upward pres- 4ure is in turn transmittedto the chamber ormed byrthe depression 18, (or 27), and tends tocompress this chamber against the pressure of the air therein and alsoagainst the resistance caused by the downward pressure of the heel ofthe shoe against the elevation 20, (or 28). My heel thus takes up theshockof walking in three ways; first, by the compression of the materialof the heel itratenteu any a, iai 7.

This tends to close the self; second, by the compression of the air inthe chamber 18; and third, by the bending of the portion 25. The lowerportion of the heel is so formed as to produce a great amount ofstrength by the use of a Small amount of material, and also to preventor Eninimize possible slipping of the wearers oot.

The advantages of my invention will thus be obvious. I do not limitmyself to the exact forms described, as, it is evident that variousother forms might be employed,

f a depression of arched Jform extending laterally therefrom into saidtread portion, anda depression in its upper face.

3. A heel provided with `a peripheral tread portion, a depression in itslower face, a depression extending laterally therefrom through saidtread portion for a portion of 'pts width only; and a depression in itsupper aoe.

4. A heel provided with a peripheral tread portion, a depression in itslower face, a secondary depression therein, and a depression in itsupper face.

5. A heel provided with a peripheral tread portion, a depression in itslower face, a depression inits upper face, and a lateral depressionextending outwardly from said last named depression into said treadportion.

6. A heel provided with a peripheral tread portionz a depression in itslower face, a depression 1n its upper face, and a lateral depressionextending outwardly from said last named depression and through saidtread portion for a portion of its width only.

7. A heel provided with a peripheral tread portion, a depression in itslower face, a depression in its upper face a groove eX- tendinglaterally from one oi said depressions, and a central elevation in saidlast named depression. n

8. A heel provided with a peripheral tread portion, a depression in itslower face, a depression in its upper face, a groove eX- tendinglaterally from one of said depressions, and a central elevation in saidlast named depression, said elevation extending above the level of theperipheral portion of the upper faeefof the heel.

9. A heel provided with a peripheral tread portion,l a depression in itslower face, secondary depressions extending laterally therefrom, adepression in its upper face, and secondary depressionsextendinglaterally therefrom, said upper and lower depressions beingstaggered with relation to each other.

l0.- A heel provided with a peripheral tread portion, a depressionin itslower face, a secondary depression therein, a depression in its upperface, anda central elevation in said last named depression.

l1. A heel provided with a peripheral tread portion, a depression in itslower face, a secondary depression therein, a depression in its upperface, and a central elevation in said last named depression, saidelevation extending above the level of the peripheral portion of theupper face of the heel.

In witness whereof I have hereunto signed my name this 18th day ofAugust, 1916.

OSCAR MUSSINAN.

